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From Cloacas to Vaginas


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Fascinating study of the evolution of the female reproductive system.

The vagina is an entirely new structure, which has no homolog in amphibians or reptiles. That is an interesting observation. It’s a wholly original structure that arose sometime after the monotreme-marsupial split, an evolutionary novelty. How did that happen?

Published by Andy

Gay Hoosier Taurus INFJ ex-playwright pianist gymbunny published author in San Francisco.

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